Car-bolster.



PATENTED JULYS, 190s.

E. I. DODDS. CAR BOLSTER. APPLIOATION FILED AUG.23.19055 s sums-sum 1.

--- 'FXTENTED JULY 3, 1906- E. I. DODDS. GAR BOLSTBR. APPLICATION rxnnn mo.aa.1oos.

3 BKBETB-BHEBT 3.

"UNITE STATES PATENT OFFICE.

n..n... i

ETHAN I. DODDS, OF' PULLMAN, ILLINOIS, ASSIGNOR TO THE PULLMAN COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF- ILLINOIS.

CAR-BOLSTER.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed August 23. 1905- Serial No. 275,384-

2'0 aZl whom, it may concern.-

Be it known that I, ETHAN I. Donns, a citizen of the United States, residing at Pullman, in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Car-Bolsters, of which the folowing is a specification. a

My invention concerns metallic car-bol sters, and involves the use of an le-bars riveted to the sides of the bolster, t e top plate thereof being secured to said angle-bars.

By employing bars of different sizes and weights t e construction and strength of the bolsters may be varied and made to conform to the strains to which it may be subjected. By this means a standard size of bolster may be varied to meet the demands of the particular type of car it is to be employed in. The depth of the sides of the bolster may also be changed somewhat by modifyin the position of the angle-bars relative to t e sides.

In the accompanying drawings I haveillustrated an embodiment of my invention, wherein- Figurel is a perspective view of a truckbolster embodying my invention. Fig. 2 is a central vertical longitudinal section of both a body and truck bolster constructed according ,to my invention. Fig. 3 is an enlarged end view of the two bolsters shown in Fig. 2. Fig. l is an enlarged section of both bolsters on the line I 4 of Fig. 2 as viewed in the direction indicated by the arrows. Fig. 5 is the blank from which the body-bolster is made, and Fig. 6 is a similar blank truck-lmlster is made.

The description of the manufacture of the body-bolster from the blank shown in Fig. 5 will snlliro to show how the truck-bolster is made from its blank, since the operations are idem ical, the truck-holster differing from the body' iiolrsier only in res met to size as far as the main purl ion of the bolster is concerned. To niultclhe body-holster I press out of the plane of a rectangular sheet of metal 10 four tapering ribs 11 by bending the metal upwardly on the lines l2, which extend inwardly from each end of the sheet a portion of their length parallel and which then converge and meet at the points 13. This 1 stamping operation git es t ic outer ongi udinal portions oi the sheet which are to comprise the sides of the bolster in its finished from which the form their bellied shape. Sides 14 are then bent upwardly on the parallel lines 15, so as to be at right angles with the central portion of the bottom 16. The central strip oi the sheet is bent on lines 17 and 18', so as to form intermediatetinclined and horizontal end portions of the bottom. These bending opera tions are preferably performed by submittin the sheet to the action of properly-shape dies, the operations being performed simultaneously. By this manipulation of the sheet I produce the main portion of the bolster, and it will be noted that the sides are bellied, the sur lus metal at their ends being taken up in t e inturned tapering ribs 11, and that the bottom, comprising the central ortion 16, the inclined portions 19, and the end horizontal portions 20, is. integral with the sides.

As stated .above, the main portion of the truck-bolster is made from the blank illustrated in Fig. 6 in a similar manner. T o the upper edges of the body-bolster I rivetanglebars 21 adjacent to their upper edges and with the fian es of the an le-bars extended outwardly. if desired, t e tapering ribs may be supplied with fillets 22 to facilitate the riveting of the angle-bars to the sides. T ension-plate 23 is riveted to the flanges of these angle-bars. Dish-shaped spacin members 24 are riveted to the sides of the olster to space them a art and at the same time to join them toget er, the sides of the spacing members being recessed to conform to the surfaces of the inwardly-pressed ribs.

The truck-bolster is similar to the bodybolster; but its top angle-bars 25 extend over only a portion of its len th, as shown in Fig. 2, its top com ression-pIate 26 bein riveted to said angleare, as shown most 0 early in Figs. 1 and 3. In the truck-bolster two spacing members 27 are emplo ed at each end,

and the rivets which hold tiem in place ass also through the side guides 28. t wll be apparent that the strength of these bolsters maybe varied to some extent by using anglebars of different strengths and weights, and it will also. be obvious that the depth of the sides may bevaricd by riveting the angle-bars to the sides with their flanges a distance above the upper edges of the sides.

My invention is not limited-to the details of construction as shown and described above thereof at each end, a bottom plate,

I bars With.outwardlyextended flan except in so far as they are made the sitbjectmatter of specific claims This atent is intended to embrace only so much oi the disclosure made herein as is covered'by the claims.

I claim 1. A oar-bolster having side plates, each.

with an integral rib pressed out of the plane thereof at each end, a bottom plate, and anglebars riveted to said side plates adjacent to their upper ed es, substantially as described. 2. A car-b0 ster having side plates, each with an integral rib pressed out of the plane 'thereof at each end, a bottom plate, anglebars riveted to said side plates adjacent to their up er edges, and. a to plate riveted to said ang e-bars, substantially as described.

3. A car-bolster having side plates, each with an integral rib pressed out of' the plane thereof at each end, a bottom plate, and angle-bars with outwardly-extended flanges riveted to said side plates adjacent to'tlieir upper edges, substantially as described.

4. A car-bolster having side plates, each with an integral rib pressed out of the plane angles riveted to said side plates adjacent tot eir upper edges, and a top plate riveted to said outwardlyextended flanges, substantially as described.

5. A car-bolster having side plates, each with an integral rib pressed out 0f the plane thereof at each end, a bottom plate integral with said side' lates, and angle-bars secured to said side -p ates adjacent to their upper edges, substantially as described.

6. Acar-bolster having side plates, each i l with an integral rib pressed out ofthe plane thereof at each end,- a bottom plate integral with said side plates, angle-bars riveted to said side plates adjacent to their upper edges, and a top late riveted to said angle-bars,

substantial y as described.

7. A car-bolster having bellied side plates, each with an integral tapered rib pressed out of the'plane thereof at each end, a' bottom plate, and angle-bars riveted to said side plates adjacent to their-upper edges, substantially as described. Y

8. Ac'ar-bolster having bellied side plates, each with an integral tapered rib pressed out of the plane thereof at each end, a bottom plate, angle-bars riveted to said side plates adjacent to their up er edges, and a top late riveted to said ang e-bars, substantial described. 9. A. car-bolster having bellied side plates, each with an integral taperedrib pressed out of the plane thereof at each end, a bottom plate integral with said side plates, and angle-bars with outwardly-extended flanges riveted, to said side' lates adjacent to their upper edges, substantlall y as described.

10.- A car-bolster having bellied side plates, each with an integral tapered rib pressed out yas of the plane thereof at each end, a bottom;

plate integral with said side lates, angle-bars with outwardly-extended flgnges riveted to said side plates adjacent to their upper edges, and a to plate riveted to the outwardly-extended flanges of said angle-bars, substantiallyas described. v

1'1. Acar-bolster having bellied side plates, each with .an integraltapered rib pressed inwardly out of the plane thereof at-each end, a bottom plate integral with said sideplates for substantially its entire length, andang'lebars withoutwardly-extended flanges riveted to the outer-sides of said side plates, substantially as. described 1 12. A car bolster having bellied side plates, each with an integral tapered rib pressed in-{ Wardly out of the plane thereof at each end, a bottom plate integral with said side plates for substantially its entire length, angle-bars with outwardly-extended flanges riveted'to the outer sides of said side plates, and ato I plate riveted to the outwardly-extends anges of said angle-bars, substantially as described.

' ETHAN L -'DODDS.-

' Witnesses: I

WALTER M. FULLER, FREDERICK C. GOODWIN. 

